What is the correctly describes a compound?
A chemical compound can be described as substance composed of atoms from more than one element held together by chemical bonds in a fixed stoichiometric proportion. A compound has different physical and chemical properties from its constituent elements.
Which example describes a compound?
A compound is a substance formed when two or more chemical elements are chemically bonded together. Example 1: Pure water is a compound made from two elements – hydrogen and oxygen. The ratio of hydrogen to oxygen in water is always 2:1. Each molecule of water contains two hydrogen atoms bonded to a single oxygen atom.
What is aluminum element or compound?
Aluminum (Al), also spelled aluminium, chemical element, a lightweight silvery white metal of main Group 13 (IIIa, or boron group) of the periodic table. Aluminum is the most abundant metallic element in Earth’s crust and the most widely used nonferrous metal.
What compounds is aluminum commonly found in?
All of the earth’s aluminum has combined with other elements to form compounds. Two of the most common compounds are alum, such as potassium aluminum sulfate (KAl(SO4)2·12H2O), and aluminum oxide (Al2O3). About 8.2% of the earth’s crust is composed of aluminum.
Is hand sanitizer a compound or element?
Is Sugar an element or compound?
Why is sugar is a compound?
Table sugar, or sucrose, is a compound because it’s formed when two or more elements are joined together. Its chemical formula is C and it contains carbon, hydrogen and oxygen. More specifically, each molecule of sugar has 12 carbon atoms, 22 hydrogen atoms and 11 oxygen atoms.
Are diamonds a mixture?
It’s a heterogeneous mixture. Diamond is made of just one element: carbon. Each carbon atom in diamond is connected to four other carbon atoms, in a crystal that extends on and on. There are other forms of pure carbon where the atoms are bonded differently, notably charcoal and graphite.
What are physical properties of diamond?
Physical Properties of Diamond
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